Moving-picture-film wiper.



E. DUCHER.

IVIOVlNG PICTURE FILM WIPEB.

APPLICATION FILED AUG. I6, 1916.

1,231 ,YQ-Q Patented Apr. 3, 1917.

UDUUDII IIIUHUUD 14 TTORNEYS EDWIN DUCHER, OF JERSEY CITY, NEW JERSEY.

MOVING-PICTURE-FILM WIPER.

Specification. of Letters Patent.

Patented Apr. 3, 191W.

Application filed August 16, 1916. Serial No. 115,214.

To all whom it may concern:

Be it known that I, EDWIN DUorrnR, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and Improved Moving-Picture-Film Wiper, of which the following is a full, clear, and eXact description. I

Among the objects which the present invention has in view are: to provide a wiper of the character mentioned adapted to maintain a yielding pressure on the film during the operation of wiping; to provide a wiper of the character mentioned which may be readily and easily installed in service; and to provide means for replacing and retaining wiping surfaces for the film.

Drawings.

Figure 1 is a front elevation of a wiper constructed and arranged in accordance with the present invention;

Fig. 2 is a side elevation of the same;

Fig. 3 is a detail view in perspective showing the base of the standard with which the wiper is provided;

Fig. 4: is a detail view in perspective showing the socket in which said standard is mounted. Description.

As shown in the drawings, an arm 9 is provided to support open tubes 10. The tubes 10 are arranged in pairs as best shown in Fig. 2 of the drawings, the members of each pair opening toward each other, the object being to form trough-like pockets for the ends of the wiping pads 11 and the spring backs 12. The outer end of each of the tubes 10 is provided with a circular guide cap 13. The arm 9 is mounted rigidly on a shaft 14 which has bearings in the yoke 15 of a standard 16. As best shown in Fig. 3 of the drawings, the standard 16 has a foot 17 fitting the socket 18. The socket 18, as seen best in Fig. l of the drawings, has a base 19 provided with screw holes 20, whereby the socket may be permanently positioned on a bench or other support. The foot 17 is held in the socket 18 by a wing-headed bolt 21.

The pads 11 are preferably formed of flannel or felt strips. These strips are primarily placed over the tubes 10, the loose ends of the pads extending over the hollow of said tubes. The backs 12 are then forced into position, the ends of said backs serving to increase the tension on the pads 11, drawing the loose slack thereof as the ends of the backs pass over the edge of the tubes 10. The ends of the backs 12 immediately spring to the hollow of the tubes after having passed over-the edge thereof. Thereafter the backs 12 serve to hold the pads 11 taut while in service.

The backs 12, as shown inFig. 2 of the drawings, are oppositely bowed, and the pads 11 mounted thereon form oppositely disposed faces. This arrangement provides for wiping both sides of a film A when the same is threaded between the pads and holders therefor, as shown best in Fig.2 of the drawings.

It will be understood that the wiper is called into service preferably during the rewinding of the film A, and that the drag of the film rocks the arm 9 on its pivot 14. To maintain a tension on the arm 9 and through it and the pads 11 on the film A, a spring 22 is provided which is anchored to the said shaft and to the standard 16.

The arm 9 and parts connected therewith are therefore permitted to swing on the shaft ll and to at all times maintain a gentle but sul'licient pressure on the film A. and on both sides thereof. To restrain the arm 9 from completely rotating, it is provided with a stop 23, as shown best in Fig. 1 of the drawings. standard 16 when the arm 9 is not rocked from the relatively vertical position it assumes when inactive.

Claims.

1. An apparatus as characterized comprising a service socket; a standard adapted for mounting in said socket; a frame arm; a plurality of spring backs mounted on said arm; a plurality of pads mounted on said backs; a shaft for said arm; a yielding spring operatively connected with said arm for normally moving the same to its inactive position; and means for arresting said arm in its inactive position.

The stop 23 engages the 2. An apparatus as characterized coinprisfor said back, said covering extending 7 ing a frame arm; a plurality of oppositely around the ends of said back to be held in bowed pads mounted on said arm, said pads said brackets; and resilient means for nor- 1:) being disposed in spaced relation and emmally holding said arm in position trans- 5 bodying each a spring back, socketbrackets verse to the direction of travel of a fihn rigidly mounted on said arm and extended when passing therethrough. from the side thereof, and a. fabric covering EDWIN DUCHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

